Hornby Lighthouse, South Head, Sydney Harbour, Australia Royalty-Free Stock Photography

Hornby Lighthouse, also known as South Head Lower Light, is an active lighthouse located on the tip of South Head, New South Wales, Australia, a headland to the north of the suburb Watsons Bay. It marks the southern entrance to Port Jackson and Sydney Harbour, as well as lighting the South Reef, a ledge of submerged rocks. It is the third oldest lighthouse in New South Wales.